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Google demos driverless cars

engadget.com

91–100 of 118 posts

Re: Google demos driverless cars

#91
post #5

If applied correctly this could solved a lot of traffic problem. I still don't understand why cars don't have a retractable bar under them. So you normally drive everywhere, but big roads like highways are in fact rails where your car gets on.

Do you mean something like this? http://www.ruf.dk/

It hasn't caught on. And I don't see the advantages that might be there outweighing the disadvantages.

Re: Google demos driverless cars

#92
post #5

If applied correctly this could solved a lot of traffic problem. I still don't understand why cars don't have a retractable bar under them. So you normally drive everywhere, but big roads like highways are in fact rails where your car gets on.

Wow! Nice idea. You could even skip the retractable when the rails fits in between your wheels.

Re: Google demos driverless cars

#93
post #91
post #5

If applied correctly this could solved a lot of traffic problem. I still don't understand why cars don't have a retractable bar under them. So you normally drive everywhere, but big roads like highways are in fact rails where your car gets on.

Do you mean something like this? http://www.ruf.dk/ It hasn't caught on. And I don't see the advantages that might be there outweighing the disadvantages.

I can see why cutting a car in half never caught on...

Re: Google demos driverless cars

#94

Unless all cars are driven by machine, the driverless car won't make a huge difference in our lives. You can already experience the magic of not having to drive by paying someone else to do it for you. The real gains of automation occur when a machine doing the job can do it faster than a human. Computers calculate and communicate faster than people, and factories/robots build stuff faster. A machine driving a car ha…

This is wrong of course. Imagine you could hire a driver, now imagine he worked for free and was always at his best driving ability. The things that self driving cars will do first, really really well, are: 1) Drive people around who currently use chauffers because they can use the driving time productively. 2) Lower the barrier to attending events, restaurants, etc in urban areas where parking is an issue. (if you c…

Aggregate data about trips and make statistics and whatnot.

Re: Google demos driverless cars

#95
post #77

Earlier quoted context omitted.

Almost like a taxi? I guess with driverless it's more like cloud carpooling.

It'd be cheaper than a taxi since there's no driver to pay.

Yeah. Just buy the car first. And automated car insurance. And the monthly fee for internet connectivity so the car can get data from google.

Re: Google demos driverless cars

#96

Earlier quoted context omitted.

This view seems deeply flawed. One of the upsides of public transportation is that I can read / sleep / work / talk with people with 0 distractions. The downside is that the commute is 3-5 times longer. If I can get the shorter commute time of my car AND have the benefits of not having to pay attention, that's a huge gain even if my travel time isn't any faster. Additionally, there are plenty of use cases that don't…

The comparison to current public transportation is unfair. First, imagine what public transportation would be like today if as much money had been invested as has been invested in cars. There are more licensed vehicles in the U.S. than there are licensed drivers. Cars simply cannot beat public transportation in raw material use, operating cost or road space utilization. My car occupies 70 sq ft of road space. At most…

First, imagine what public transportation would be like today if as much money had been invested as has been invested in cars.

Honestly, I do this all too often. What if the American passenger railroad system had never been left to die? What if the Big Three hadn't bought up streetcar services all over the country and run them into the ground? What if we'd been investing money for the past half century in making advances in new rail technology instead of trying to make dangerous cars slightly less dangerous?

The intermittent dialog about high-speed rail here brings to mind an obese diabetic who has resolved that he definitely needs to start going to the gym one of these days.

Ok, I think I'm done ranting.

Re: Google demos driverless cars

#97
post #85

Earlier quoted context omitted.

It was sarcasm. The point was that the iOS vs. Android wars pale in comparison to potentially world-changing research like this.

The ubiquitous spread of smartphones throughout the world is not world changing? We're talking about platforms that struggle for mastery over an emerging market that will be bigger than the PC revolution.

"Android vs. iOS wars" refers to all the senseless flame wars that often get more attention here at HN. That's not to imply smartphones aren't world-changing devices.

Re: Google demos driverless cars

#98
post #54

Earlier quoted context omitted.

This view seems deeply flawed. One of the upsides of public transportation is that I can read / sleep / work / talk with people with 0 distractions. The downside is that the commute is 3-5 times longer. If I can get the shorter commute time of my car AND have the benefits of not having to pay attention, that's a huge gain even if my travel time isn't any faster. Additionally, there are plenty of use cases that don't…

Imagine cars on demand. You don't own a car, you text a car to get you to work at 8:30, the car picks you up at home, drops you off (no parking space required) and goes on to the next ride. I can't wait to see driverless cars.

It's called PRT (personal rapid transit) and in my view, it's the one glimmer of hope in turning a century's worth of investment in automobile infrastructure from a liability into an asset. It's a fantastic idea that's gaining some limited traction in places like London Heathrow (http://www.ultraprt.com/prt/), where hopefully it can gain enough of a foothold to expand. Right now, PRT systems tend to use their own rights-of-way, but with the advent of true driverless cars, all that could change.

Re: Google demos driverless cars

#99

Unless all cars are driven by machine, the driverless car won't make a huge difference in our lives. You can already experience the magic of not having to drive by paying someone else to do it for you. The real gains of automation occur when a machine doing the job can do it faster than a human. Computers calculate and communicate faster than people, and factories/robots build stuff faster. A machine driving a car ha…

It would be sweet to see a time where only a majority of the cars on the road are driven by machine. I imagine them driving in packs, and leaving lots of buffer space between them and the lone human driver.

Yes, these secondary affects are interesting to think about. Also, if people don't have to drive 95% of the time, people will forget how to drive, and will probably be unable to instantly switch into 'operator' mode when/if the car decides to transfer back into manual mode. For this reason, I don't see the technology being successful until it can drive reliably enough that it never has to switch back into manual mode.

Can you imagine reading a book, watching a movie, eating (or whatever) in your car and suddenly the situation gets so hairy that the car switches back into manual? I don't think that would work out, especially if the last time you had taken the wheel was 5 years ago.

Re: Google demos driverless cars

#100
post #26

Earlier quoted context omitted.

Interestingly enough, a car which simply refuses to drive in hurricanes, hailstorms, white-out snow, and so forth would be rather more than 20% superior to the average driver. So that's easily dealt with - if insufficient sensory data is available, either hand control over to the driver or, if possible, pull to the side of the road. The average driver likely does really horrible in large crashes and pileups, so merel…

One of the nice things about software drivers is that you can spend as much time as you want training a module for driving with, say, a given tire blown out and then swap that module in when actual conditions match the conditions that its trained for.

It's more of a sensory problem than a logic problem.
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